1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
2 | #ifndef __NET_DROPMON_H |
3 | #define __NET_DROPMON_H |
4 | |
5 | #include <linux/types.h> |
6 | #include <linux/netlink.h> |
7 | |
8 | struct net_dm_drop_point { |
9 | __u8 pc[8]; |
10 | __u32 count; |
11 | }; |
12 | |
13 | #define is_drop_point_hw(x) do {\ |
14 | int ____i, ____j;\ |
15 | for (____i = 0; ____i < 8; i ____i++)\ |
16 | ____j |= x[____i];\ |
17 | ____j;\ |
18 | } while (0) |
19 | |
20 | #define NET_DM_CFG_VERSION 0 |
21 | #define NET_DM_CFG_ALERT_COUNT 1 |
22 | #define NET_DM_CFG_ALERT_DELAY 2 |
23 | #define NET_DM_CFG_MAX 3 |
24 | |
25 | struct net_dm_config_entry { |
26 | __u32 type; |
27 | __u64 data __attribute__((aligned(8))); |
28 | }; |
29 | |
30 | struct net_dm_config_msg { |
31 | __u32 entries; |
32 | struct net_dm_config_entry options[]; |
33 | }; |
34 | |
35 | struct net_dm_alert_msg { |
36 | __u32 entries; |
37 | struct net_dm_drop_point points[]; |
38 | }; |
39 | |
40 | struct net_dm_user_msg { |
41 | union { |
42 | struct net_dm_config_msg user; |
43 | struct net_dm_alert_msg alert; |
44 | } u; |
45 | }; |
46 | |
47 | |
48 | /* These are the netlink message types for this protocol */ |
49 | |
50 | enum { |
51 | NET_DM_CMD_UNSPEC = 0, |
52 | NET_DM_CMD_ALERT, |
53 | NET_DM_CMD_CONFIG, |
54 | NET_DM_CMD_START, |
55 | NET_DM_CMD_STOP, |
56 | NET_DM_CMD_PACKET_ALERT, |
57 | NET_DM_CMD_CONFIG_GET, |
58 | NET_DM_CMD_CONFIG_NEW, |
59 | NET_DM_CMD_STATS_GET, |
60 | NET_DM_CMD_STATS_NEW, |
61 | _NET_DM_CMD_MAX, |
62 | }; |
63 | |
64 | #define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1) |
65 | |
66 | /* |
67 | * Our group identifiers |
68 | */ |
69 | #define NET_DM_GRP_ALERT 1 |
70 | |
71 | enum net_dm_attr { |
72 | NET_DM_ATTR_UNSPEC, |
73 | |
74 | NET_DM_ATTR_ALERT_MODE, /* u8 */ |
75 | NET_DM_ATTR_PC, /* u64 */ |
76 | NET_DM_ATTR_SYMBOL, /* string */ |
77 | NET_DM_ATTR_IN_PORT, /* nested */ |
78 | NET_DM_ATTR_TIMESTAMP, /* u64 */ |
79 | NET_DM_ATTR_PROTO, /* u16 */ |
80 | NET_DM_ATTR_PAYLOAD, /* binary */ |
81 | NET_DM_ATTR_PAD, |
82 | NET_DM_ATTR_TRUNC_LEN, /* u32 */ |
83 | NET_DM_ATTR_ORIG_LEN, /* u32 */ |
84 | NET_DM_ATTR_QUEUE_LEN, /* u32 */ |
85 | NET_DM_ATTR_STATS, /* nested */ |
86 | NET_DM_ATTR_HW_STATS, /* nested */ |
87 | NET_DM_ATTR_ORIGIN, /* u16 */ |
88 | NET_DM_ATTR_HW_TRAP_GROUP_NAME, /* string */ |
89 | NET_DM_ATTR_HW_TRAP_NAME, /* string */ |
90 | NET_DM_ATTR_HW_ENTRIES, /* nested */ |
91 | NET_DM_ATTR_HW_ENTRY, /* nested */ |
92 | NET_DM_ATTR_HW_TRAP_COUNT, /* u32 */ |
93 | NET_DM_ATTR_SW_DROPS, /* flag */ |
94 | NET_DM_ATTR_HW_DROPS, /* flag */ |
95 | NET_DM_ATTR_FLOW_ACTION_COOKIE, /* binary */ |
96 | NET_DM_ATTR_REASON, /* string */ |
97 | |
98 | __NET_DM_ATTR_MAX, |
99 | NET_DM_ATTR_MAX = __NET_DM_ATTR_MAX - 1 |
100 | }; |
101 | |
102 | /** |
103 | * enum net_dm_alert_mode - Alert mode. |
104 | * @NET_DM_ALERT_MODE_SUMMARY: A summary of recent drops is sent to user space. |
105 | * @NET_DM_ALERT_MODE_PACKET: Each dropped packet is sent to user space along |
106 | * with metadata. |
107 | */ |
108 | enum net_dm_alert_mode { |
109 | NET_DM_ALERT_MODE_SUMMARY, |
110 | NET_DM_ALERT_MODE_PACKET, |
111 | }; |
112 | |
113 | enum { |
114 | NET_DM_ATTR_PORT_NETDEV_IFINDEX, /* u32 */ |
115 | NET_DM_ATTR_PORT_NETDEV_NAME, /* string */ |
116 | |
117 | __NET_DM_ATTR_PORT_MAX, |
118 | NET_DM_ATTR_PORT_MAX = __NET_DM_ATTR_PORT_MAX - 1 |
119 | }; |
120 | |
121 | enum { |
122 | NET_DM_ATTR_STATS_DROPPED, /* u64 */ |
123 | |
124 | __NET_DM_ATTR_STATS_MAX, |
125 | NET_DM_ATTR_STATS_MAX = __NET_DM_ATTR_STATS_MAX - 1 |
126 | }; |
127 | |
128 | enum net_dm_origin { |
129 | NET_DM_ORIGIN_SW, |
130 | NET_DM_ORIGIN_HW, |
131 | }; |
132 | |
133 | #endif |
134 | |